:root{color-scheme:dark;--bg:#111d23;--panel:#142128;--panel2:#182831;--line:#293a42;--ink:#e9eee9;--sub:#9caeb1;--muted:#71878c;--accent:#cfb58b;--accent2:#ebd8b5;--err:#ec8e86;--ok:#8dcead;--shadow:0 16px 60px #0004;font-family:Inter,"Segoe UI",Arial,sans-serif;font-synthesis:none}
*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden}body{background:var(--bg);color:var(--ink);font-size:14px}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,select:focus-visible,input:focus-visible,canvas:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}button:disabled{opacity:.38;cursor:not-allowed}button:hover:not(:disabled){filter:brightness(1.12)}.app-shell{height:100dvh;display:flex;flex-direction:column;min-height:0}.app-header{height:72px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 24px;border-bottom:1px solid var(--line);background:#101c22}.brand{display:flex;align-items:center;gap:12px;min-width:275px}.brand-logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(145deg,#d8c39d,#a68e6d);color:#152329;display:grid;place-items:center;font-size:25px;font-weight:600}.brand strong{display:block;font-size:16px;letter-spacing:-.3px}.brand span{display:block;font-size:10px;letter-spacing:1.7px;text-transform:uppercase;color:#91a3aa;margin-top:4px}.brand b{font-weight:600;color:var(--accent)}.center-head{font-size:11px;color:#b8c1bf;letter-spacing:.25px;white-space:nowrap;display:flex;align-items:center;gap:8px}.head-sub{color:#7f9093}.pulse,.live-dot,.save-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#89c6ac;box-shadow:0 0 0 3px #89c6ac15}.divider-dot{color:#4c6268}.top-actions{display:flex;align-items:center;gap:9px;white-space:nowrap}.primary-btn,.secondary-btn,.subtle-btn,.icon-btn,.danger-btn,.text-btn{border:1px solid var(--line);border-radius:8px;min-height:38px;padding:0 14px;color:var(--ink);background:#1a2931;transition:background .16s,filter .16s}.primary-btn{border-color:#d5bc95;background:#d2ba91;color:#132228;font-weight:700}.secondary-btn{background:#21313a;border-color:#374a52}.main-layout{display:grid;grid-template-columns:298px minmax(260px,1fr) 284px;flex:1;min-height:0}.left-panel,.right-panel{display:flex;flex-direction:column;min-height:0;background:var(--panel);z-index:2}.left-panel{border-right:1px solid var(--line)}.right-panel{border-left:1px solid var(--line)}.scroller{overflow-y:auto;overscroll-behavior:contain;padding:27px 20px 25px;min-height:0;flex:1;scrollbar-color:#40545d transparent;scrollbar-width:thin}.section-eyebrow{font-size:9px;color:var(--accent);letter-spacing:2px;font-weight:700}.scroller h1{font-size:31px;letter-spacing:-1.5px;line-height:1.13;margin:12px 0 11px;font-weight:600}.scroller h1 em{font-style:normal;color:#d6bd98}.intro{font-size:12px;line-height:1.65;color:#9eafb1;max-width:240px;margin:0 0 22px}.sample-note{display:flex;gap:12px;border:1px solid #5e594b77;background:#302e2a99;border-radius:11px;padding:13px 12px;color:#f1dec0;font-size:12px;line-height:1.5}.sample-note strong{font-weight:700}.note-icon{display:grid;place-items:center;color:#e5cba5;font-size:21px}.sample-note small{display:block;color:#b5a995;font-size:10px;margin-top:3px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin:27px 0 13px}.section-heading h2{font-size:13px;margin:0;font-weight:700;letter-spacing:.1px}.section-number{font-size:10px;color:#697b80}.mini-label{font-size:9px;letter-spacing:1.3px;color:#9fafb1;font-weight:700;display:block;margin-bottom:8px}.select-input{color:#ecede7;background:#1d2b33;border:1px solid #36474e;border-radius:8px;width:100%;height:42px;padding:0 12px}.action-pair{display:flex;gap:7px;margin-top:9px}.action-pair .subtle-btn{flex:1}.subtle-btn{font-size:11px;color:#d4dcda;background:#202f37}.icon-btn{font-size:14px;padding:0 11px}.swatch-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}.swatch{padding:7px 7px 9px;min-width:0;text-align:left;display:flex;flex-direction:column;gap:8px;border:1px solid #35464d;background:#1c2b33;border-radius:9px;color:#cad2cd;font-size:10px;overflow:hidden}.swatch.selected{border-color:#d3b88b;box-shadow:0 0 0 1px #d3b88b75 inset}.swatch-color{display:block;height:40px;width:100%;border-radius:5px;border:1px solid #ffffff1c;box-shadow:inset 0 0 12px #0001}.swatch-color.wood{background-image:repeating-linear-gradient(0deg,#0000 0 9px,#0002 9px 10px),repeating-linear-gradient(104deg,#fff1 0 3px,#0000 3px 18px);background-blend-mode:soft-light}.swatch>span:last-child{margin-left:3px}.minor{color:#8c9fa3;margin:-3px 0 14px;font-size:11px;line-height:1.4}.catalog-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.catalog-item{border:1px solid #35464d;border-radius:10px;background:linear-gradient(150deg,#24343d,#1a2a32);color:#e3e9e4;min-width:0;min-height:107px;padding:8px 10px;text-align:left;display:flex;flex-direction:column;align-items:flex-start}.catalog-icon{font-family:Georgia,serif;font-size:30px;line-height:36px;color:#c9ac83;display:block;text-align:center;width:100%;margin:2px 0 3px}.catalog-name{font-weight:600;font-size:11px}.catalog-item small{color:#91a1a4;margin-top:4px;font-size:10px}.small-print{font-size:10px;color:#839397;line-height:1.55;margin-top:17px}.left-bottom{padding:13px 20px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:8px}.left-bottom .subtle-btn{white-space:nowrap}.text-btn{border:0;background:transparent;padding:0 4px;color:#a3b1b1;font-size:11px}.viewport-panel{position:relative;min-width:0;min-height:0;display:flex;flex-direction:column;background:#172a31}.viewport-top{height:60px;padding:10px 19px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #fff1}.floating-tabs{display:flex;gap:3px;padding:4px;background:#12232c;border:1px solid #2d434c;border-radius:11px}.tab{min-height:30px;border:0;border-radius:7px;padding:0 17px;background:transparent;color:#9babb0;font-size:12px}.tab.active{background:#d6c09d;color:#1c2a2d;font-weight:700}.viewport-tools{display:flex;gap:7px}.viewport-btn{width:34px;height:34px;border-radius:8px;border:1px solid #36515b;background:#203740;color:#c7d3d3;font-size:17px}.stage{flex:1;position:relative;min-height:0;background:radial-gradient(ellipse at center,#233a42,#14272f);overflow:hidden;touch-action:none}.stage canvas{width:100%;height:100%;display:block;position:absolute;inset:0;touch-action:none;cursor:grab}.canvas-vignette{pointer-events:none;position:absolute;inset:0;box-shadow:inset 0 0 95px #071a224f}.canvas-watermark{pointer-events:none;position:absolute;left:21px;top:23px;font-size:10px;font-weight:700;letter-spacing:1.35px;color:#d6dfdf98}.canvas-watermark span{color:#dfbf87}.dimensions-hint{position:absolute;right:20px;top:21px;border:1px solid #b1c3c425;border-radius:7px;padding:8px 11px;background:#14252baa;color:#d9e1dd;font-size:11px}.dimensions-hint span{color:#bda98c}.status-lane{pointer-events:none;position:absolute;left:22px;bottom:60px;display:flex;gap:9px;align-items:center;font-size:10px;color:#cfd7d4}.status-lane>span:first-child{color:#dbc19b;font-weight:700;letter-spacing:1px}.status-sep{color:#728992}.viewport-stats{position:absolute;left:19px;bottom:18px;display:flex;align-items:center;gap:9px;background:#10232ccf;border:1px solid #58717d55;border-radius:8px;padding:9px 12px;color:#dce6e2;font-size:10px;font-variant-numeric:tabular-nums}.viewport-stats .dim{color:#516970}.viewport-bottom{min-height:52px;padding:13px 20px;border-top:1px solid #ffffff12;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;color:#9badad}.viewport-bottom strong{color:#c9b48d}.keyboard-label{color:#66838b;letter-spacing:1px;white-space:nowrap;font-size:9px}.right-panel{padding:24px 17px 0}.right-top{display:flex;align-items:center;justify-content:space-between}.right-top .section-eyebrow{color:#91a7ab}.right-icon{color:#779299;font-size:23px}.inspector{flex:1;overflow-y:auto;scrollbar-width:thin;scrollbar-color:#41545a transparent;min-height:140px}.empty-inspector{text-align:center;margin:63px auto 10px;max-width:220px}.empty-icon{border:1px dashed #576a6b;border-radius:50%;width:77px;height:77px;display:grid;place-items:center;font-size:42px;color:#c3af8c;margin:auto auto 20px}.empty-inspector h2{font-size:14px;margin:0 0 9px}.empty-inspector p{color:#91a2a7;line-height:1.65;font-size:11px}.inspector-object-top{display:flex;gap:12px;align-items:center;padding:24px 0 10px}.object-symbol{width:54px;height:54px;display:grid;place-items:center;background:#273941;border:1px solid #3c5159;border-radius:10px;color:#d0b48b;font-size:31px}.inspector-object-top .mini-label{margin:0 0 5px}.inspector-object-top h2{font-size:16px;margin:0}.rule{height:1px;background:var(--line);margin:18px 0}.dimension-row{display:flex;justify-content:space-between;margin-top:14px}.dimension-row div{display:flex;flex-direction:column;gap:5px}.dimension-row strong{font-size:13px}.dimension-row small{font-size:10px;color:#879a9c}.measure-pair{display:flex;gap:8px;margin:14px 0}.measure-input{min-width:0;display:flex;align-items:center;gap:5px;position:relative;background:#1e2e37;border:1px solid #344a52;border-radius:8px;padding:8px}.measure-input span{font-size:10px;color:#9caaac}.measure-input input{width:100%;min-width:0;border:0;background:transparent;color:#eff2ef;text-align:right;outline:0;appearance:textfield}.measure-input small{font-size:9px;color:#819597}.measure-input input::-webkit-outer-spin-button,.measure-input input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.rotation-row{display:flex;justify-content:space-between;align-items:center;color:#9dadac;font-size:11px;margin:12px 0}.rotation-row strong{color:#e4e9e5;font-size:14px}.rotation-buttons{display:flex;gap:5px}.rotation-buttons button{border:1px solid #344a52;background:#23333a;border-radius:6px;padding:8px 6px;color:#dae3df;font-size:10px;flex:1}.inspector-micro{color:#93a5a8;font-size:10px;line-height:1.6;margin:20px 0}.inspector-warning,.inspector-ok{font-size:10px;border:1px solid #bb725c88;border-radius:8px;padding:11px;line-height:1.45;background:#3b302e;color:#ffc1b1}.inspector-ok{background:#20382f;color:#a8dbc0;border-color:#4f8b6e88}.object-actions{display:flex;gap:7px;margin:17px 0}.object-actions button{flex:1;padding:0 7px;font-size:10px}.danger-btn{color:#f6a39f;background:#402c2f;border-color:#69444a}.check-panel{border:1px solid #39515a;background:linear-gradient(145deg,#203640,#192d35);border-radius:11px;padding:15px 12px;margin-bottom:17px}.check-title{display:flex;align-items:center;gap:8px;color:#c2d0ce}.check-title strong{font-size:12px}.badge-check{margin-left:auto;color:#d6e2d7;font-size:9px;background:#47635d;border:1px solid #5e8774;border-radius:5px;padding:4px 5px;white-space:nowrap}.badge-check.warning{background:#5e413a;border-color:#a46f62;color:#ffb39f}.badge-check.pass{background:#294d42;border-color:#4d846e;color:#b2e8cd}.check-panel p{color:#b9c7c4;font-size:11px;line-height:1.6;margin:12px 0 10px}.check-disclaimer{font-size:10px;color:#82999e;line-height:1.4}.right-bottom{border-top:1px solid var(--line);padding:18px 0 22px;color:#c6d2cb;font-size:11px}.right-hint{font-size:9px;letter-spacing:1.5px;color:#8fa1a1;margin-bottom:9px}.right-bottom>div:nth-child(2){display:flex;gap:9px;align-items:center}.right-bottom small{display:block;font-size:10px;color:#8a9c9d;line-height:1.5;margin:9px 0 0}.toast{position:fixed;bottom:78px;left:50%;transform:translateX(-50%);z-index:10;max-width:min(460px,90vw);padding:13px 19px;border-radius:10px;color:#ecf5ee;font-size:12px;background:#2c594c;border:1px solid #5f997f;box-shadow:var(--shadow);text-align:center}.toast.error{background:#663d3b;border-color:#b97e77}.toast[hidden],.fatal-error[hidden],.walk-pad[hidden]{display:none}.fatal-error{position:absolute;inset:16% 10%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;background:#422f31ec;color:#fbd2cc;border:1px solid #a96d6c;border-radius:14px;padding:26px}.fatal-error p{line-height:1.6}.walk-pad{position:absolute;right:15px;bottom:70px;display:flex;flex-direction:column;align-items:center;gap:2px}.walk-pad>div{display:flex;gap:3px}.walk-pad button{width:51px;height:46px;background:#132931d9;border:1px solid #69838d66;border-radius:9px;color:#e7d1ac;touch-action:none;font-size:17px;user-select:none}
@media(max-width:1200px){.main-layout{grid-template-columns:266px minmax(260px,1fr) 256px}.brand{min-width:220px}.center-head .head-sub{display:none}.scroller{padding:22px 15px}.right-panel{padding:22px 13px 0}}
@media(max-width:950px){.app-header{height:65px;padding:0 14px}.center-head{display:none}.main-layout{grid-template-columns:228px minmax(240px,1fr)}.right-panel{display:none}.scroller{padding:17px 12px}.scroller h1{font-size:26px}.catalog-grid{gap:6px}.catalog-item{min-height:102px}.stage{min-height:230px}}
@media(max-width:650px){html,body{overflow:auto;min-height:100%}.app-shell{height:auto;min-height:100dvh}.app-header{height:62px;padding:0 11px}.brand{min-width:0;gap:8px}.brand-logo{width:31px;height:31px;font-size:20px}.brand strong{font-size:13px}.brand span{font-size:8px}.top-actions{gap:5px}.top-actions button{min-height:34px;padding:0 9px;font-size:11px}.top-actions #qualityButton{max-width:110px}.top-actions .primary-btn{max-width:42px;overflow:hidden}.top-actions .primary-btn span{display:none}.main-layout{display:flex;flex-direction:column;overflow:visible}.viewport-panel{order:0;height:61dvh;min-height:390px;max-height:680px}.left-panel{order:1;max-height:none;border-top:1px solid var(--line);border-right:0}.left-panel .scroller{overflow:visible;padding:19px 18px}.scroller h1{font-size:27px}.intro{max-width:none;margin-bottom:15px}.section-heading{margin:20px 0 11px}.swatch-grid{grid-template-columns:repeat(4,1fr);gap:5px}.swatch{font-size:9px;padding:5px}.swatch-color{height:32px}.catalog-grid{grid-template-columns:repeat(3,1fr)}.catalog-item{min-height:98px}.right-panel{display:flex;order:2;border-left:0;border-top:1px solid var(--line);padding:19px 18px}.inspector{min-height:0;overflow:visible}.empty-inspector{margin:20px auto}.check-panel{margin-top:16px}.right-bottom{padding-bottom:20px}.viewport-top{height:51px;padding:7px 10px}.viewport-bottom{min-height:46px;padding:10px 13px;font-size:10px}.keyboard-label{display:none}.canvas-watermark{top:13px;left:12px;font-size:8px}.dimensions-hint{top:10px;right:10px;font-size:9px}.status-lane{left:12px;bottom:56px;font-size:8px;max-width:90%}.viewport-stats{left:10px;bottom:11px;font-size:9px;padding:7px 9px}.walk-pad{right:9px;bottom:54px}.walk-pad button{width:43px;height:40px}.left-bottom{padding:12px 18px}.toast{bottom:18px}.catalog-icon{font-size:24px}.catalog-name{font-size:10px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Prototype 1.1: installability, touch interaction and quick mobile object editing. */
[hidden]{display:none!important}
.install-button{border-color:#688476;background:#25483c;color:#dcf7df}
.install-guide{color:#acc1c1;font-size:11px;line-height:1.55;border:1px solid #3c5156;border-radius:9px;padding:10px 12px;margin:0 0 18px}
.install-guide summary{cursor:pointer;color:#e0ceb0;font-weight:600}
.install-guide p{margin:9px 0 0}
.mobile-selection{display:none}
@media(max-width:650px){
  .top-actions .install-button{width:36px;max-width:36px;min-width:36px;padding:0 7px;font-size:17px}
  .top-actions .install-button span{display:none}
  .top-actions #qualityButton{max-width:87px;padding:0 7px}
  .top-actions #qualityLabel{font-size:10px}
  .mobile-selection:not([hidden]){position:absolute;bottom:53px;left:50%;transform:translateX(-50%);max-width:calc(100% - 16px);display:flex;align-items:center;gap:6px;background:#11252ff2;border:1px solid #647e85;border-radius:11px;padding:5px 6px;box-shadow:0 9px 28px #0008;z-index:4;white-space:nowrap}
  .mobile-selection span{max-width:118px;overflow:hidden;text-overflow:ellipsis;color:#f3e1c4;font-size:11px;padding:0 6px;font-weight:650}
  .mobile-selection button{min-height:40px;min-width:42px;border:1px solid #56717a;border-radius:7px;color:#f6e3c6;background:#27404a;font-size:20px}
  .mobile-selection button[data-mobile-delete]{color:#ffb4ad;border-color:#754950;background:#4d3036}
  .walk-pad{z-index:5}
  .viewport-panel{height:64dvh;min-height:355px}
  .stage{touch-action:none;overscroll-behavior:contain}
  .swatch{min-height:72px;touch-action:manipulation}
  .catalog-item{min-height:95px;touch-action:manipulation}
  .walk-pad button,.viewport-btn,.tab,.mobile-selection button{touch-action:manipulation}
}
@media(max-width:380px){
 .brand strong{font-size:11px}
 .top-actions #qualityButton{max-width:37px;overflow:hidden}
 .top-actions #qualityLabel{display:none}
 .mobile-selection span{max-width:82px}
 .viewport-tools{gap:3px}
}

@media(max-width:650px){.viewport-btn.zoom-btn{width:30px;height:34px;font-size:17px}.viewport-tools{gap:3px}}
@media(max-width:370px){.viewport-btn.zoom-btn{width:27px}}

/* Prototype 1.2: mobile viewport and selected-object controls, safe areas. */
.repair-layout{margin-top:12px;width:100%;padding:10px;border-color:#a78760;color:#f3d5a7}
.app-shell{padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
@media(max-width:650px){
 .app-header{padding-top:env(safe-area-inset-top,0px);min-height:62px;height:auto;gap:8px}
 .brand{flex-shrink:1;min-width:0}
 .top-actions{flex-shrink:0}
 .viewport-panel{height:clamp(350px,65dvh,670px);min-height:350px;max-height:670px}
 .stage{min-height:0;overscroll-behavior:contain}
 .viewport-top{padding:6px 8px;gap:4px;min-width:0}
 .floating-tabs{min-width:0;flex:1;max-width:215px}
 .floating-tabs .tab{flex:1;min-width:0;padding:8px 5px;font-size:11px;white-space:nowrap}
 .viewport-tools{flex-shrink:0;gap:3px}
 .viewport-btn{width:30px;height:34px;min-width:28px;flex-shrink:0}
 .viewport-stats{bottom:12px;left:9px;max-width:calc(100% - 18px);white-space:nowrap;z-index:2}
 .status-lane{top:37px;bottom:auto;left:12px;right:12px;max-width:calc(100% - 24px);pointer-events:none}
 .mobile-selection:not([hidden]){bottom:54px;left:50%;max-width:calc(100% - 18px);z-index:5}
 .mobile-selection span{min-width:0;flex-shrink:1}
 .mobile-selection button{flex-shrink:0}
 .walk-pad{bottom:64px;right:8px}
 .viewport-bottom{padding-bottom:max(10px,env(safe-area-inset-bottom,0px))}
 .toast{bottom:calc(18px + env(safe-area-inset-bottom,0px))}
 .sample-note{overflow-wrap:anywhere}
}
@media(max-width:390px){
 .app-header{gap:4px;padding-left:8px;padding-right:8px}
 .brand-logo{width:28px;height:28px}
 .brand strong{font-size:11px}
 .brand span{font-size:7px}
 .top-actions{gap:3px}
 .top-actions button{font-size:10px;padding:0 6px}
 .top-actions #qualityButton{max-width:37px}
 .top-actions #qualityLabel{display:none}
 .viewport-top{padding:5px 6px}
 .viewport-tools{gap:2px}
 .viewport-btn,.viewport-btn.zoom-btn{width:29px;min-width:27px;height:34px;padding:0}
 .floating-tabs{max-width:none}
 .floating-tabs .tab{font-size:10px;padding:7px 4px}
 .mobile-selection:not([hidden]){gap:3px;padding:4px}
 .mobile-selection span{max-width:100px;font-size:10px}
 .mobile-selection button{min-width:38px;min-height:37px}
 .viewport-stats{font-size:8px;padding:6px 7px}
}
@media(max-width:650px) and (orientation:landscape) and (max-height:550px){
 .viewport-panel{height:clamp(290px,78dvh,480px);min-height:290px}
 .viewport-top{height:45px}
 .mobile-selection:not([hidden]){bottom:44px}
 .status-lane{top:33px}
}

/* Prototype 1.2.1: individual-wall paint. */
.wall-help{margin:0 0 10px}
.wall-targets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin-bottom:10px}
.wall-target{min-width:0;min-height:38px;display:flex;align-items:center;gap:7px;text-align:left;padding:7px 8px;border-radius:8px;border:1px solid #405059;background:#192a32;color:#d9dfdb;font-size:11px}
.wall-target:first-child{grid-column:1/-1}
.wall-target.selected{border-color:#d7bb8c;background:#314038;box-shadow:0 0 0 1px #d7bb8c4a inset;color:#fff4df}
.wall-target-color{flex:none;display:block;width:20px;height:20px;border:1px solid #ffffff44;border-radius:5px}
.wall-target-status{min-height:29px;color:#bccac8;font-size:10px;line-height:1.45;margin:3px 0 9px}
.wall-custom{display:flex;align-items:center;gap:9px;border:1px solid #3c4b51;border-radius:9px;padding:7px 9px;margin-top:10px;font-size:10px;color:#b6c5c4}
.wall-custom span{flex:1}
.wall-custom input{padding:0;width:43px;height:32px;background:none;border:none;flex:none;cursor:pointer}
.wall-custom code{font-size:10px;color:#d8c49f;min-width:51px;text-align:right}
.paint-shortcut{display:none;background:#293d42;color:#f2ddba;border:1px solid #5a6965;border-radius:8px;padding:8px 10px;font-size:11px;white-space:nowrap;flex-shrink:0}
@media(max-width:650px){
 .wall-target{min-height:43px;font-size:12px}
 .wall-targets{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
 .paint-shortcut{display:block}
 .viewport-bottom{gap:6px;align-items:center}
 .viewport-bottom #instruction{min-width:0;flex:1;line-height:1.45}
}
@media(max-width:360px){.paint-shortcut{font-size:10px;padding:8px 7px}}

/* 1.2.2: visible save status and direct-host diagnostic (mobile-first). */
.storage-panel,.embedded-warning{border:1px solid #48635d;border-radius:11px;padding:12px 13px;margin:12px 0 17px;background:#1c3534;color:#e6eee8;line-height:1.45}
.storage-panel>strong,.embedded-warning>strong{display:block;font-size:12px;margin-bottom:4px}
.storage-panel small{display:block;font-size:10px;color:#b5c9c1;overflow-wrap:anywhere}
.storage-panel p,.embedded-warning p{margin:8px 0 0;font-size:10px;color:#a8c2ba;line-height:1.55}
.storage-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:11px}
.storage-actions button{flex:1;min-width:112px;padding:8px 7px;font-size:11px}
.storage-panel.storage-failed,.embedded-warning{border-color:#a77951;background:#3a332d}
.embedded-warning{margin-top:-5px;margin-bottom:16px}
.embedded-warning button{margin-top:10px;padding:9px 12px}
.embedded-warning[hidden]{display:none}
@media(max-width:650px){.storage-panel,.embedded-warning{margin:12px 0 16px;padding:13px}.storage-actions button{min-height:39px}}

/* v1.2.4 - architectural openings, compact/mobile-friendly inspector. */
.arch-catalog{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:9px 0 11px}
.arch-catalog button{min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:70px;border:1px solid #46646a;border-radius:9px;color:#e4e8dc;background:#20363d;font-size:23px}
.arch-catalog span{font-weight:600;font-size:10px}
.arch-view-toggle{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:9px 0 7px;padding:9px 10px;border:1px solid #354f55;border-radius:8px;font-size:11px;color:#d4dfd9}
.arch-view-toggle button{font-size:10px;min-height:34px;padding:0 9px;white-space:nowrap}
.arch-list{display:flex;flex-direction:column;gap:6px;margin:12px 0 7px}
.arch-list-item{display:flex;gap:11px;align-items:center;text-align:left;width:100%;padding:10px;border:1px solid #3b535a;border-radius:8px;background:#1c3139;color:#e4e9e4;min-width:0}
.arch-list-item.active{border-color:#d1b78d;box-shadow:0 0 0 1px #bc9c6980 inset;background:#34413b}
.arch-list-item>span:first-child{width:29px;font-size:25px;flex-shrink:0;text-align:center}
.arch-list-item>span:last-child{display:flex;flex-direction:column;min-width:0;gap:3px}
.arch-list-item strong{font-size:11px}
.arch-list-item small{color:#a2b5b5;font-size:10px;line-height:1.35}
.arch-editor{margin:13px 0 18px}
.arch-edit-header{display:flex;justify-content:space-between;align-items:center;gap:6px;border-bottom:1px solid #3c5258;padding:9px 0;margin-bottom:10px;color:#efdfbf;font-size:12px}
.arch-edit-header .text-btn{min-height:30px}
.arch-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.arch-field{display:flex;flex-direction:column;min-width:0;gap:4px;font-size:10px;color:#c8d1ce}
.arch-field>span{line-height:1.3;min-height:23px}
.arch-field input,.arch-field select{display:block;width:100%;min-width:0;border:1px solid #52676a;background:#1a2f38;color:#f3eee1;padding:0 9px;height:37px;border-radius:7px;font-size:12px}
.arch-edit-actions{display:flex;justify-content:flex-end;margin:12px 0 5px}
.arch-edit-actions button{font-size:11px;min-height:37px}
.arch-summary{font-size:11px;color:#afc2c3;line-height:1.6;margin:15px 0}
@media(max-width:650px){
 .arch-catalog button{min-height:78px;touch-action:manipulation}
 .arch-catalog span{font-size:11px}
 .arch-field input,.arch-field select{min-height:43px;font-size:16px}
 .arch-edit-actions button{min-height:43px}
 .arch-list-item{min-height:56px}
}

/* Avoid two identical editing forms on narrow screens: left panel is the mobile editor. */
@media(max-width:650px){.right-panel .arch-fields{display:none}.right-panel .arch-summary{margin:8px 0 0}}

/* 1.2.5: visible structural material controls and illustrated finish previews. */
.surface-panel{margin:12px 0 19px;padding:14px 12px;background:linear-gradient(150deg,#2b3d3c,#172b33);border:1px solid #58716a;border-radius:12px}
.surface-panel-secondary{margin-top:9px;background:#1b3038}
.surface-title{display:flex;align-items:center;justify-content:space-between;gap:5px;font-size:13px;color:#f3dcb1}
.surface-title small{font-size:9px;letter-spacing:.08em;color:#9db2b4}
.surface-panel p{font-size:10px;line-height:1.6;color:#b9c9c5;margin:7px 0 12px}
.surface-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.surface-fields label{display:flex;flex-direction:column;min-width:0;gap:6px;font-size:10px;font-weight:600;color:#d6ded6}
.surface-fields select{width:100%;min-width:0;min-height:38px;background:#152930;color:#f6ecdb;border:1px solid #577078;border-radius:7px;padding:7px 9px;font-size:11px}
#floorSwatches .swatch-color.wood{background-size:25px 32px;background-blend-mode:multiply}
@media(max-width:650px){.surface-fields select{min-height:44px;font-size:15px}.surface-panel{padding:13px 12px}}
@media(max-width:360px){.surface-fields{grid-template-columns:1fr}}

/* 1.2.7: product references and floor-laying patterns. */
.beta-label{font-size:9px;color:#101e25;background:#d6bb90;padding:3px 5px;border-radius:4px;vertical-align:middle;white-space:nowrap}
.real-products{display:grid;gap:8px;margin:10px 0 18px}
.real-product-card{min-width:0;background:#1b3038;border:1px solid #3c585b;border-radius:10px;padding:12px 13px;display:flex;flex-direction:column;gap:5px}
.real-product-card strong{font-size:12px;color:#f5e6c6;letter-spacing:.015em}
.real-product-card small{font-size:10px;color:#b2c7c4;line-height:1.5}
.real-product-card p{margin:0;color:#92a6a7;font-size:10px;line-height:1.5}
.real-product-actions{margin-top:5px;display:flex;gap:7px;flex-wrap:wrap;align-items:center}
.real-product-actions button,.real-product-actions a{padding:9px 10px;min-height:36px;text-align:center;text-decoration:none;font-size:11px;font-weight:650;border-radius:7px;border:1px solid #67817c;color:#f7e8c9;background:#264841;flex:1}
.real-product-actions a{background:#1c343a;color:#b9d8d9;border-color:#4e6c73}
.real-product-actions button:focus-visible,.real-product-actions a:focus-visible{outline:2px solid #f2ca7d;outline-offset:2px}
.product-studio{border:1px solid #466063;border-radius:11px;margin:10px 0 15px;padding:8px 12px;background:#192e35}
.product-studio summary{cursor:pointer;padding:9px 2px;font-size:12px;font-weight:650;color:#e7d5b6;line-height:1.45}
.product-studio p{margin:5px 0 12px;color:#9fb5b5;font-size:10px;line-height:1.5}
.product-fields{display:grid;gap:8px;padding:5px 0 12px}
.product-fields label{display:flex;flex-direction:column;gap:5px;font-size:10px;color:#d1d8d1;min-width:0}
.product-fields input,.product-fields select{width:100%;min-width:0;min-height:37px;padding:8px;border-radius:7px;border:1px solid #4e696d;background:#152830;color:#e9eadf;font-size:12px}
.product-fields input:focus-visible,.product-fields select:focus-visible{outline:2px solid #d7ba88}
.product-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
.product-metrics input{text-align:center;padding:7px 2px}
.product-add-btn{border-radius:8px;background:#bfa273;color:#102027;border:0;min-height:40px;font-weight:700}
.floor-ref-status{display:flex;flex-direction:column;gap:3px;color:#d9dfd9;font-size:11px;margin:8px 0;overflow-wrap:anywhere}
.floor-ref-status a{color:#a7dddd;line-height:1.5}
#floorRefClear{font-size:10px;margin-bottom:8px}
.product-proxy-notice{font-size:11px;line-height:1.6;background:#263c3d;border:1px solid #527069;border-radius:8px;padding:11px;margin:12px 0}
.product-proxy-notice a{color:#f1d3a3;display:inline-block}
@media(max-width:650px){.product-fields input,.product-fields select{font-size:16px;min-height:44px}.product-studio summary{padding:12px 0}.real-product-actions button,.real-product-actions a{min-height:43px;font-size:12px}}

/* 1.2.7 Visual Studio -- separate import controls; no change to mobile scene size. */
.asset-studio{margin:17px 0;padding:16px 14px;border:1px solid #56736d80;border-radius:12px;background:linear-gradient(135deg,#19333a,#1a2c35);color:#d3e0df}
.asset-studio-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.asset-studio-heading strong{font-size:13px;color:#f0d4a4}.asset-studio-heading span{font-size:10px;color:#83a99c}
.asset-studio p,.asset-studio>small{display:block;font-size:11px;line-height:1.65;color:#a7bebf;margin:10px 0}
.asset-studio-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin:10px 0}
.asset-import-button{display:flex;align-items:center;justify-content:center;text-align:center;min-height:39px;font-size:10px;padding:8px 9px;line-height:1.35;border-radius:7px;cursor:pointer;border:1px solid #607b75;background:#24443e;color:#e8f3e8;font-weight:700}
.asset-import-button:hover{background:#356458}.asset-studio-controls .subtle-btn{min-height:38px;font-size:10px}
.asset-tile-label{font-size:10px;color:#b8c9c9;display:flex;flex-direction:column;gap:4px}.asset-tile-label input{width:100%;border:1px solid #58756b;background:#14252c;color:#f4eadb;padding:7px 9px;border-radius:6px}
.asset-status{font-size:11px;line-height:1.6;border-left:2px solid #7caf9b;padding:7px 10px;margin:9px 0;color:#d3dfe0;background:#152930;border-radius:3px}
.three-preview-button{width:100%;background:linear-gradient(100deg,#7c5d36,#bc9860);border:1px solid #e4c890;color:#13242c;font-weight:800;font-size:11px;min-height:43px;padding:10px;border-radius:8px;cursor:pointer}
.three-preview-button.active{background:#264c48;color:#daf2e9;border-color:#79bda7}
.stage .three-layer{pointer-events:none;z-index:1}.stage .three-layer[hidden]{display:none}
.inspector-photo{margin-top:12px;max-width:100%;max-height:180px;object-fit:contain;border-radius:8px;border:1px solid #617771}
@media(max-width:650px){.asset-studio-controls{grid-template-columns:1fr}.asset-import-button{min-height:45px;font-size:12px}.asset-studio{padding:13px}.three-preview-button{min-height:48px;font-size:12px}}

.asset-studio a{color:#dceabd;text-decoration:underline;text-underline-offset:3px}

/* 1.2.8: persistent, prominent way out of the high-quality GLB room. */
.room-preview-controls{position:absolute;z-index:5;top:57px;left:18px;display:flex;flex-wrap:wrap;gap:8px;max-width:calc(100% - 36px);pointer-events:auto}
.room-preview-controls button{border:1px solid #668887;background:#19353eeb;color:#edf6ef;font-size:12px;font-weight:650;border-radius:9px;min-height:38px;padding:7px 12px;box-shadow:0 6px 20px #101e2590}
.room-preview-controls button.room-return{background:#d7bb8d;color:#1c2a2e;border-color:#dfc6a0}
.room-preview-controls button[hidden]{display:none!important}
.room-preview-controls button:focus-visible{outline:2px solid #fff}
@media(max-width:680px){.room-preview-controls{top:57px;left:11px;gap:5px;max-width:calc(100% - 20px)}.room-preview-controls button{min-height:36px;font-size:10.5px;padding:6px 8px}.canvas-watermark{top:118px}.dimensions-hint{top:117px}}

@media(max-width:355px){.stage.pbr-active .canvas-watermark{top:160px}.stage.pbr-active .dimensions-hint{top:162px}}
.stage.pbr-active .canvas-watermark{top:111px}
.stage.pbr-active .dimensions-hint{top:109px}
@media(max-width:355px){.stage.pbr-active .canvas-watermark{top:162px}.stage.pbr-active .dimensions-hint{top:162px}}
@media(max-width:355px){.stage.pbr-active .dimensions-hint{top:190px}}

/* 1.2.12: explicit floor-source selection, prevents a stored photo from masking presets. */
.floor-source-status{font-size:10.5px;line-height:1.55;color:#b8ccc9;margin:8px 0 13px;min-height:20px}
.floor-photo-sample{background:repeating-linear-gradient(30deg,#b7ac9c 0px,#a99171 8px,#c8b89c 16px,#7f796d 24px);box-shadow:inset 0 0 8px #0002}
#reuseFloorPhoto{color:#d6e9dc;border-color:#648e79;background:#254139}
#reuseFloorPhoto[hidden]{display:none!important}

/* 1.2.12 — neutrale PBR-belichting, geen overlay boven de scène. */
.pbr-lighting-controls{display:flex;flex-direction:column;gap:8px;padding:12px;margin:10px 0;border:1px solid #678076;border-radius:9px;background:#162e31}
.pbr-lighting-controls label{font-size:11px;color:#f5dfb9;font-weight:700}
.pbr-lighting-controls select{width:100%;min-width:0;border-radius:7px;min-height:40px;border:1px solid #64877d;background:#11262e;color:#e8eee7;padding:7px;font-size:12px}
.pbr-lighting-controls small{font-size:10px;color:#aac5b8;line-height:1.55}
@media(max-width:650px){.pbr-lighting-controls select{font-size:16px;min-height:46px}}

/* 1.2.12: opt-in comparison with user-owned photos, no retailer-image scraping. */
.product-compare-hint{margin:12px 0 9px;border:1px solid #476261;border-radius:12px;background:linear-gradient(110deg,#1d3236,#192a30);padding:11px;display:grid;gap:7px;}
.product-compare-hint strong{font-size:11px;color:#e9d4b3;}
.product-compare-hint span{font-size:10px;line-height:1.5;color:#bed0ce;}
.product-compare-hint button{width:100%;padding:9px;}
.inspector-photo{width:100%;max-height:230px;object-fit:contain;background:#f0eee9;border:1px solid #4e676d;border-radius:9px;}